March 23rd Unit Rate & Ratios

What is a Ratio?

• Is a comparison of two quantities

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one

• Two decimals that can be multiplied

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I paid $15.00 for 6 gallons of gasoline.
What was the price PER gallon?

• $0.40
• $9.00
• $2.50
• $0.90

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Movie ticket sales are as follows:
Adult: 20 tickets for $250
Child: 15 tickets for $71.25
Senior: 5 tickets for $37.50
How much does one (1) ADULT ticket cost?

• $0.08
• $25
• $12
• $12.50

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There are 75 pieces of candy in a 15 oz bag.
How many pieces are there per ounce?

• 5 pieces
• 0.2 pieces
• 50 pieces
• 60 pieces

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Which is NOT equivalent to 3:5?

• 15:25
• 9:15
• 21:28
• 30:50

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What mathematical operation do ratios involve?

• addition
• subtraction
• multiplication
• division

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Which of the following expresses a ratio?

• 2/3
• two-thirds
• 0.667
• 2.3

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Find the unit rate of one diaper if a box of 35 diapers costs $6.99.

• $244.65
• $1.00
• $6.99
• $0.20

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Which is the better buy? a 12 pack of Coke for $3.50 or a six pack of Coke for $1.80?

• The 12 pack of Coke
• The 6 pack of Coke
• Neither
• They are the same

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You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

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